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Soviet Union The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a List of former transcontinental countries#Since 1700, transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, ...
covertly operated the world's largest, longest, and most sophisticated biological weapons program, thereby violating its obligations as a party to the 1972
Biological Weapons Convention The Biological Weapons Convention (BWC), or Biological and Toxin Weapons Convention (BTWC), is a disarmament treaty that effectively bans biological and toxin weapons by prohibiting their development, production, acquisition, transfer, stockpil ...
.Leitenberg, M., Zilinskas, R., & Kuhn, J. (2012). Conclusion. In ''The Soviet Biological Weapons Program'' (pp. 698-712). Cambridge, Massachusetts; London, England: Harvard University Press. Retrieved February 7, 2021, from http://www.jstor.org/stable/j.ctt2jbscf.30 The program began in the 1920s and lasted until at least September 1992 but has possibly been continued by
Russia Russia (, , ), or the Russian Federation, is a transcontinental country spanning Eastern Europe and Northern Asia. It is the largest country in the world, with its internationally recognised territory covering , and encompassing one-eig ...
after that. During
World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposing ...
,
Joseph Stalin Joseph Vissarionovich Stalin (born Ioseb Besarionis dze Jughashvili; – 5 March 1953) was a Georgian revolutionary and Soviet political leader who led the Soviet Union from 1924 until his death in 1953. He held power as General Secretar ...
was forced to move his
biological warfare Biological warfare, also known as germ warfare, is the use of biological toxins or infectious agents such as bacteria, viruses, insects, and fungi with the intent to kill, harm or incapacitate humans, animals or plants as an act of war. ...
(BW) operations out of the way of advancing German forces and may have used
tularemia Tularemia, also known as rabbit fever, is an infectious disease caused by the bacterium ''Francisella tularensis''. Symptoms may include fever, skin ulcers, and enlarged lymph nodes. Occasionally, a form that results in pneumonia or a throat infe ...
against German troops in 1942 near Stalingrad. By 1960, numerous BW research facilities existed throughout the Soviet Union. Although the USSR also signed the 1972
Biological Weapons Convention The Biological Weapons Convention (BWC), or Biological and Toxin Weapons Convention (BTWC), is a disarmament treaty that effectively bans biological and toxin weapons by prohibiting their development, production, acquisition, transfer, stockpil ...
(BWC), the Soviets subsequently augmented their biowarfare programs. Over the course of its history, the Soviet program is known to have weaponized and stockpiled the following bio-agents (and to have pursued basic research on many more): *'' Bacillus anthracis'' ( anthrax) *''
Yersinia pestis ''Yersinia pestis'' (''Y. pestis''; formerly '' Pasteurella pestis'') is a gram-negative, non-motile, coccobacillus bacterium without spores that is related to both ''Yersinia pseudotuberculosis'' and ''Yersinia enterocolitica''. It is a facult ...
'' ( plague) *''
Francisella tularensis ''Francisella tularensis'' is a pathogenic species of Gram-negative coccobacillus, an aerobic bacterium. It is nonspore-forming, nonmotile, and the causative agent of tularemia, the pneumonic form of which is often lethal without treatment. It is ...
'' (
tularemia Tularemia, also known as rabbit fever, is an infectious disease caused by the bacterium ''Francisella tularensis''. Symptoms may include fever, skin ulcers, and enlarged lymph nodes. Occasionally, a form that results in pneumonia or a throat infe ...
) *''
Burkholderia mallei ''Burkholderia mallei'' is a Gram-negative, bipolar, aerobic bacterium, a human and animal pathogen of genus ''Burkholderia'' causing glanders; the Latin name of this disease (''malleus'') gave its name to the species causing it. It is closely re ...
'' (
glanders Glanders is a contagious zoonotic infectious disease that occurs primarily in horses, mules, and donkeys. It can be contracted by other animals, such as dogs, cats, pigs, goats, and humans. It is caused by infection with the bacterium ''Burkhold ...
) *''
Brucella ''Brucella'' is a genus of Gram-negative bacteria, named after David Bruce (1855–1931). They are small (0.5 to 0.7 by 0.6 to 1.5 µm), non encapsulated, non motile, facultatively intracellular coccobacilli. ''Brucella'' spp. are the caus ...
'' sp. (
brucellosis Brucellosis is a highly contagious zoonosis caused by ingestion of unpasteurized milk or undercooked meat from infected animals, or close contact with their secretions. It is also known as undulant fever, Malta fever, and Mediterranean fever. The ...
) *''
Coxiella burnetii ''Coxiella burnetii'' is an obligate intracellular bacterial pathogen, and is the causative agent of Q fever. The genus ''Coxiella'' is morphologically similar to ''Rickettsia'', but with a variety of genetic and physiological differences. ''C. ...
'' ( Q-fever) *
Venezuelan equine encephalitis virus Venezuelan equine encephalitis virus is a mosquito-borne viral pathogen that causes Venezuelan equine encephalitis or encephalomyelitis (VEE). VEE can affect all equine species, such as horses, donkeys, and zebras. After infection, equines m ...
(VEE) * Botulinum toxin *
Staphylococcal enterotoxin B In the field of molecular biology, enterotoxin type B, also known as Staphylococcal enterotoxin B (SEB), is an enterotoxin produced by the gram-positive bacteria '' Staphylococcus aureus''. It is a common cause of food poisoning, with sever ...
*
Smallpox Smallpox was an infectious disease caused by variola virus (often called smallpox virus) which belongs to the genus Orthopoxvirus. The last naturally occurring case was diagnosed in October 1977, and the World Health Organization (WHO) c ...
* Marburg virus *
Orthopoxvirus ''Orthopoxvirus'' is a genus of viruses in the family ''Poxviridae'' and subfamily ''Chordopoxvirinae''. Vertebrates, including mammals and humans, and arthropods serve as natural hosts. There are 12 species in this genus. Diseases associated wi ...
These programs became immense and were conducted at dozens of secret sites employing up to 65,000 people. Annualized production capacity for weaponized
smallpox Smallpox was an infectious disease caused by variola virus (often called smallpox virus) which belongs to the genus Orthopoxvirus. The last naturally occurring case was diagnosed in October 1977, and the World Health Organization (WHO) c ...
, for example, was 90 to 100 tons. In the 1980s and 1990s, many of these agents were genetically altered to resist heat, cold, and antibiotics. In the 1990s,
Boris Yeltsin Boris Nikolayevich Yeltsin ( rus, Борис Николаевич Ельцин, p=bɐˈrʲis nʲɪkɐˈla(j)ɪvʲɪtɕ ˈjelʲtsɨn, a=Ru-Boris Nikolayevich Yeltsin.ogg; 1 February 1931 – 23 April 2007) was a Soviet and Russian politician wh ...
admitted to an offensive biological weapons program as well as to the true nature of the Sverdlovsk biological weapons accident of 1979, which had resulted in the deaths of at least 64 people. Defecting Soviet bioweaponeers such as Vladimir Pasechnik and Colonel Kanatjan Alibekov confirmed that the program had been massive and still existed. In 1992, a Trilateral Agreement was signed with the United States and the United Kingdom promising to end biological weapons programs and convert facilities to benevolent purposes, but compliance with the agreement—and the fate of the former Soviet bio-agents and facilities—is still mostly undocumented.


History


Pre-World War II

International restrictions on biological warfare began only with the June 1925
Geneva Protocol The Protocol for the Prohibition of the Use in War of Asphyxiating, Poisonous or other Gases, and of Bacteriological Methods of Warfare, usually called the Geneva Protocol, is a treaty prohibiting the use of chemical and biological weapons in ...
, which prohibits the use but not the possession or development of chemical and biological weapons. Upon ratification of the Geneva Protocol, several countries made reservations regarding its applicability and use in retaliation. The Soviet Union was one, when it deposited its ratification notice. Due to these reservations, it was in practice a " no-first-use" agreement only. The principal architect of the Soviet Union's first military biological programme was . In August 1925, he was appointed the first head of the
Red Army The Workers' and Peasants' Red Army ( Russian: Рабо́че-крестья́нская Кра́сная армия),) often shortened to the Red Army, was the army and air force of the Russian Soviet Federative Socialist Republic and, afte ...
's Military-Chemical Directorate (''Voenno-khimicheskoe upravlenie'', abbreviated to ''VOKhIMU''). In 1926, at a small laboratory controlled by ''VOKhIMU'', Fishman initiated research on ''Bacillus anthracis'' (the causative agent of anthrax). In February 1928, Fishman prepared a key report for Kliment Efremovich Voroshilov (the
People's Commissar Commissar (or sometimes ''Kommissar'') is an English transliteration of the Russian (''komissar''), which means 'commissary'. In English, the transliteration ''commissar'' often refers specifically to the political commissars of Soviet and Ea ...
for Military and Navy Affairs and Chairman of the USSR's Revolutionary Military Council) on the Soviet Union's preparedness for biological warfare. It asserted that "''the bacterial option could be successfully used in war''" and proposed a plan for the organisation of Soviet military bacteriology. It was at this time that , an expert on botulinum toxin and
botulism Botulism is a rare and potentially fatal illness caused by a toxin produced by the bacterium ''Clostridium botulinum''. The disease begins with weakness, blurred vision, feeling tired, and trouble speaking. This may then be followed by weakne ...
, emerged as the lead scientist in the early Soviet biological weapons program. In 1930, Velikanov was placed in command of a new facility, the Red Army's Vaccine-Sera Laboratory in Vlasikha, around 30 miles to the west of
Moscow Moscow ( , US chiefly ; rus, links=no, Москва, r=Moskva, p=mɐskˈva, a=Москва.ogg) is the capital and largest city of Russia. The city stands on the Moskva River in Central Russia, with a population estimated at 13.0 millio ...
. Buildings at the site belonging to a
smallpox Smallpox was an infectious disease caused by variola virus (often called smallpox virus) which belongs to the genus Orthopoxvirus. The last naturally occurring case was diagnosed in October 1977, and the World Health Organization (WHO) c ...
institute, subordinate to the People's Commissariat of Health, were transferred to the military facility. Early programs at the military lab focused on ''Francisella tularensis'' (the causative agent of tularaemia). Running parallel to the work underway at Vlasikha, BW research was also being pursued in an institution controlled by the state security apparatus. In July 1931, the Joint State Political Directorate ( OGPU), a forerunner of the ''NKVD'', seized control of the Convent of the Intercession in Suzdal and then the following year created a special prison laboratory, or ''
sharashka A Special Design Bureau (, ''osoboje konstruktorskoe bûro''; ОКБ), commonly informally known as a ''sharashka'' (russian: шара́шка, ; sometimes ''sharaga'', ''sharazhka'') was any of several secret research and development laboratories ...
'', where around nineteen leading plague and tularaemia specialists were forced to work on the development of biological weapons. By 1936, scientists working on BW at both Vlasikha and Suzdal were transferred to
Gorodomlya Island Gorodomlya Island () is located on Lake Seliger in Tver Oblast, Russia, northwest of Moscow. The closed urban-type settlement of Solnechny is located on the island. In June 1930, the People's Commissariat of Agriculture (''Narkomzem'') began c ...
where they occupied an institute for the study of foot-and-mouth disease which had been built originally for the People’s Commissariat of Agriculture ('' Narkomzem''). Velikanov was placed in command of the Gorodomlya Island facility which was named as the Biotechnical Institute, also known by the code designation V/2-1094. German intelligence reported that the institute was engaged in experiments focused on ''
Francisella tularensis ''Francisella tularensis'' is a pathogenic species of Gram-negative coccobacillus, an aerobic bacterium. It is nonspore-forming, nonmotile, and the causative agent of tularemia, the pneumonic form of which is often lethal without treatment. It is ...
'' (the causative agent of tularaemia) and ''
Yersinia pestis ''Yersinia pestis'' (''Y. pestis''; formerly '' Pasteurella pestis'') is a gram-negative, non-motile, coccobacillus bacterium without spores that is related to both ''Yersinia pseudotuberculosis'' and ''Yersinia enterocolitica''. It is a facult ...
'' (the causative agent of plague). In the summer of 1936, Ivan Mikhailovich Velikanov led the Red Army's first expedition to conduct tests of biological weapons on Vozrozhdeniya Island. Around 100 personnel from Velikanov's Biotechnical Institute participated in the experiments. In July 1937, while planning for a second expedition to the island, Velikanov was arrested by the Soviet security organs and subsequently shot. Later that same summer, Leonid Moiseevich Khatanever, the new director of the Biotechnical Institute and an expert on ''Francisella tularensis'' (the causative agent of tularaemia), led a second expedition to Vozrozhdeniya. Two special ships and two aircraft were assigned to Khatanever for use in tests focused on the dissemination of tularaemia bacteria. Germany launched
Operation Barbarossa Operation Barbarossa (german: link=no, Unternehmen Barbarossa; ) was the invasion of the Soviet Union by Nazi Germany and many of its Axis allies, starting on Sunday, 22 June 1941, during the Second World War. The operation, code-named after ...
in June 1941 and following the capture of nearby Kalinin in October, the BW facility on Gorodomlya Island was evacuated and eventually relocated to Kirov. In his account of the history of the Soviet BW programme, Alibek, who as Kanatzhan Baizakovich Alibekov had been a biological weapons scientist for '' Biopreparat'', describes a quite separate strand of early BW research being pursued in Leningrad. This work was allegedly initiated in the 1920s at the Leningrad Military Medical Academy under the control of OGPU (see above). According to Alibek, in 1928, the Revolutionary Military Council signed a decree about the weaponization of
typhus Typhus, also known as typhus fever, is a group of infectious diseases that include epidemic typhus, scrub typhus, and murine typhus. Common symptoms include fever, headache, and a rash. Typically these begin one to two weeks after exposure. ...
. The Leningrad Military Medical Academy began cultivating typhus in chicken embryos. He also alleges that human experimentation occurred with typhus,
glanders Glanders is a contagious zoonotic infectious disease that occurs primarily in horses, mules, and donkeys. It can be contracted by other animals, such as dogs, cats, pigs, goats, and humans. It is caused by infection with the bacterium ''Burkhold ...
and melioidosis in the Solovetsky camp. Another, possibly more reliable source, regarding the Soviet BW programme in Leningrad are a series of secret reports generated by the British Secret Intelligence Service (SIS) - commonly known as MI6. A total of fourteen highly detailed reports on the Soviet BW programme were issued in the period 1924-1927. SIS identifies Petr Petrovich Maslakovets and Semen Ivanovich Zlatogorov as the lead BW scientists working on ''
Yersinia pestis ''Yersinia pestis'' (''Y. pestis''; formerly '' Pasteurella pestis'') is a gram-negative, non-motile, coccobacillus bacterium without spores that is related to both ''Yersinia pseudotuberculosis'' and ''Yersinia enterocolitica''. It is a facult ...
'' (the causative organism of plague) and other dangerous pathogens. Zlatogorov was in fact one of the world's leading authorities on pneumonic plague and had studied 40 strains of plague bacilli from around the world. He had been a leading participant of a Russian team despatched to combat the October 1910 to February 1911 outbreak of pneumonic plague in Manchuria. The SIS reports indicate that Zlatogorov and Maslakovets conducted some of their research on a so-called Plague Fort - Fort Alexander 1, located at Kronstadt. Here they aimed to develop strains of plague that remained viable when loaded into artillery shells, aerial bombs and other means of dispersal. German intelligence independently identified the secret BW programme allegedly managed by Zlatogorov and Maslakovets.


World War II

By 1939, with the USSR on a war footing, the Soviet leadership is reported to have believed that the "''imperialistic and fascistic countries''" had actively undertaken BW preparations and that the use of such weapons, in case of emergency, was a foregone conclusion. Stalin in response ordered an acceleration of BW preparations and appointed Lavrentiy Pavlovich Beria, the head of the
NKVD The People's Commissariat for Internal Affairs (russian: Наро́дный комиссариа́т вну́тренних дел, Naródnyy komissariát vnútrennikh del, ), abbreviated NKVD ( ), was the interior ministry of the Soviet Union. ...
, in overall command of the country's biological warfare programme. In May 1941, a number of measures codenamed ''Yurta'' were implemented to counter the perceived threat of biological sabotage by the German and Japanese intelligence services. As a result there was a tightening-up of state control over personnel working on microbial pathogens and an emphasis on the gathering of intelligence from foreign legations relating to the feasibility and use of biological weapons. On the 22 June 1941, Nazi Germany commenced
Operation Barbarossa Operation Barbarossa (german: link=no, Unternehmen Barbarossa; ) was the invasion of the Soviet Union by Nazi Germany and many of its Axis allies, starting on Sunday, 22 June 1941, during the Second World War. The operation, code-named after ...
and invaded the Soviet Union along a 2,900-kilometre front. Such was the rapidity and depth of penetration of the attack that, by September, the Red Army's BW facility - the Sanitary Technical Institute (''STI'') - on Gorodomlya Island, was under immediate threat of capture. At some point around the 25 September, the facility was evacuated and the buildings partially destroyed. There are various accounts regarding the relocation of ''STI'', with official Russian sources indicating that it was initially transferred to Saratov. In the later summer of 1942, in the face of the German offensive to capture Stalingrad, there was a second evacuation of ''STI'', which was eventually permanently relocated to Kirov, located some 896 kilometres north-east of Moscow on the Vyatka river. In his history of the Soviet Union in the Second World War, Christopher Bellamy argues that if either side was going to break the 1925 Geneva Protocol prohibiting the use of gas and bacteriological warfare, then 1942 was the most likely year. This conclusion is not surprising, since it was precisely at this moment, that both the fate of the Soviet Union and the Third Reich hung precariously in the balance during the build-up to, and the outcome of, the Battle of Stalingrad. In his account of the Soviet BW programme, Alibek, a former senior manager of '' Biopreparat'', raises the intriguing possibility that in the late summer of 1942 the Red Army engaged in the deliberate aerosol dissemination of ''
Francisella tularensis ''Francisella tularensis'' is a pathogenic species of Gram-negative coccobacillus, an aerobic bacterium. It is nonspore-forming, nonmotile, and the causative agent of tularemia, the pneumonic form of which is often lethal without treatment. It is ...
'' (the causative agent of tularaemia) against German panzer troops near Stalingrad. However, a number of prominent scholars have disputed Alibek's version of events. Chief among these is Erhardt Geissler who notes that tularaemia is endemic in the region and in any case a large outbreak occurred during the winter of 1941-1942. He points to evidence that infected rodents were the key to the large-scale outbreaks and that inhalationary tularaemia may have resulted from inhalation of dust from contaminated straw in matresses. Crucially, Geissler notes that there are no contemporary accounts by the German army or intelligence services regarding the use of ''F. tularensis'' as a biological weapon at Stalingrad. In the Far East the Soviet Union had been subject of a BW attack in 1939 during the battles of Khalkin Gol (Nomonhan) by Japan's
Unit 731 , short for Manshu Detachment 731 and also known as the Kamo Detachment and Ishii Unit, was a covert Biological warfare, biological and chemical warfare research and development unit of the Imperial Japanese Army that engaged in unethical h ...
under
Shirō Ishii Surgeon General was a Japanese microbiologist and army medical officer who served as the director of Unit 731, a biological warfare unit of the Imperial Japanese Army. Ishii led the development and application of biological weapons at Unit 73 ...
. Further attacks were initiated against the Soviet Union by Unit 100 in the summer of 1942, and at a later unspecified date, again by Unit 731. On the 9 August 1945, the Soviet Union launched its invasion of Japanese-controlled
Manchuria Manchuria is an exonym (derived from the endo demonym " Manchu") for a historical and geographic region in Northeast Asia encompassing the entirety of present-day Northeast China (Inner Manchuria) and parts of the Russian Far East (Outer M ...
. Two major Japanese offensive BW installations at
Pingfang Pingfang District () is one of nine districts of the prefecture-level city of Harbin, the capital of Heilongjiang Province, Northeast China, forming part of the city's urban core. The least spacious of Harbin's county-level divisions, it borde ...
and Changchun were overrun by the Red Army. However, General Otozō Yamada, Commander of the Kwantung Army had already ordered the destruction and evacuation of these facilities. The NKVD now switched its focus to apprehending any personnel associated with Units 100 and 731 and began a process of filtration of the 560,000-760,000 Japanese prisoners of war. In December 1949, the military figures identified by the Soviets as participating in the Japanese BW programme were put on trial in Khabarovsk. The defendants were found guilty and sentenced to terms ranging from two to twenty-five years in Soviet labour correction camps. However, the officers, doctors and other personnel from Unit 731 were in fact transferred to the comparative comfort of the NKVD special prison camp No. 48 - a tsarist-era red-brick manor house located in Cherntsy (Ivanovo region). The leniency with which the Japanese BW specialists were treated - the longest sentence any served was seven years - has led a number of scholars to conclude that some sort of deal was struck between the Soviet authorities and the Unit 731 personnel held captive in the USSR.


The Cold War

In the immediate post-war period,
Lavrenty Beria Lavrentiy Pavlovich Beria (; rus, Лавре́нтий Па́влович Бе́рия, Lavréntiy Pávlovich Bériya, p=ˈbʲerʲiə; ka, ლავრენტი ბერია, tr, ;  – 23 December 1953) was a Georgian Bolshevik ...
, the Soviet minister of internal affairs, maintained control of the Soviet BW programme and further developed its offensive capabilities. The key hub of the Soviet BW programme at this time was the Scientific-Research Institute of Epidemiology and Hygiene located in Kirov. It continued to utilise the biological weapons test site on Vozrozhdeniya Island in the Aral Sea. During the period 1947-1949 a new military biological weapons facility, the USSR Ministry of Defence's Scientific-Research Institute of Hygiene, was established in Sverdlovsk, It occupied the site of the former Cherkassk-Sverdlovsk Infantry Academy on Ulitsa Zvezdnaya, 1. The new facility became operational in July 1949. Its core staff were sourced from the Kirov BW facility. The first group to arrive from Kirov included the new director of the Institute of Hygiene, Major General Nikolai Fillipovich Kopylov. The Sverdlovsk facility launched a scientific programme in 1951 which focused on botulinum toxin. In the early 1950s the Soviet leadership became concerned that the USSR was vulnerable to attack by a new generation of virus-based biological weapons. At this time the country only possessed a single facility focused on viruses, the Moscow-based D.I. Ivanovskii Institute of Virology. In 1952, as a response to this perceived area of weakness, the Soviet government issued a special decree for the creation of the Scientific-Research Sanitary Institute (''NIIS'') in Zagorsk. It was transferred to the control of the USSR Ministry of Defence in March 1954. The new military institute later pursued major programmes focused on variola virus and viral haemorrhagic fevers. In his uncorroborated account, Alibek claims that capacity for the production of
smallpox Smallpox was an infectious disease caused by variola virus (often called smallpox virus) which belongs to the genus Orthopoxvirus. The last naturally occurring case was diagnosed in October 1977, and the World Health Organization (WHO) c ...
virus was established in
Zagorsk Sergiyev Posad ( rus, Се́ргиев Поса́д, p=ˈsʲɛrgʲɪ(j)ɪf pɐˈsat) is a city and the administrative center of Sergiyevo-Posadsky District in Moscow Oblast, Russia. Population: It was previously known as ''Sergiyev Posad'' (unt ...
. It was reported to use chicken eggs for the cultivation of the virus. Just four years after the creation of the Zagorsk facility, the CPSU and the USSR Council of Ministers issued a decree "''for strengthening scientific-research work in the field of microbiology and virology''". This decree established a secret network of BW institutes within the USSR Ministry of Agriculture. Operating under the codename "''Ekologiya''" (Ecology), the new network incorporated three virology facilities. These worked in close collaboration with Soviet military virologists and focused on both animal pathogens such as FMD and exotic zoonotic infections. In 1953 the management of the Soviet BW programme was assigned to the USSR Ministry of Defence's Fifteenth Administration. In August 1958, the latter created a new Scientific-Research Technical Bureau (''NITB''), the prime task of which was to create covert dual-use BW facilities at a number of pharmaceutical and microbiological enterprises. Over the next decade or so, dual-use BW production plants were created at Berdsk, Omutninsk, Penza and Kurgan. It is therefore apparent that previous perceptions by Western scholars of the Khrushchev era as contributing little to the development of the Soviet Union's biological warfare capabilities are incorrect. Rimmington argues that this "''was in fact a pivotal period in the Soviet programme, when BW production technology was being transferred from the military to facilities concealed within civil manufacturing plants. This was later to manifest itself as a key feature of the subsequent Biopreparat programme"''. The USSR was a signatory of 1972
Biological Weapons Convention The Biological Weapons Convention (BWC), or Biological and Toxin Weapons Convention (BTWC), is a disarmament treaty that effectively bans biological and toxin weapons by prohibiting their development, production, acquisition, transfer, stockpil ...
(BWC). However, citing doubts concerning the United States’ compliance with the BWC, they subsequently augmented their biowarfare programs. The Soviet bioweapon effort became a huge program rivaling its considerable investment in nuclear arms. It comprised various institutions operating under an array of different ministries and departments including the Soviet
Ministry of Defense {{unsourced, date=February 2021 A ministry of defence or defense (see spelling differences), also known as a department of defence or defense, is an often-used name for the part of a government responsible for matters of defence, found in state ...
,
Ministry of Agriculture An agriculture ministry (also called an) agriculture department, agriculture board, agriculture council, or agriculture agency, or ministry of rural development) is a ministry charged with agriculture. The ministry is often headed by a minister ...
, Ministry of Health,
USSR Academy of Sciences The Academy of Sciences of the Soviet Union was the highest scientific institution of the Soviet Union from 1925 to 1991, uniting the country's leading scientists, subordinated directly to the Council of Ministers of the Soviet Union (until 1946 ...
, and
KGB The KGB (russian: links=no, lit=Committee for State Security, Комитет государственной безопасности (КГБ), a=ru-KGB.ogg, p=kəmʲɪˈtʲet ɡəsʊˈdarstvʲɪn(ː)əj bʲɪzɐˈpasnəsʲtʲɪ, Komitet gosud ...
. In April 1974, a new agency, the All-Union Science Production Association ''Biopreparat'', was created under the Main Administration of the Microbiological Industry (''Glavmikrobioprom'') to spearhead the Soviet offensive BW programme. ''Biopreparat'' pursued offensive research, development, and production of biological agents under the guise of legitimate civil
biotechnology Biotechnology is the integration of natural sciences and engineering sciences in order to achieve the application of organisms, cells, parts thereof and molecular analogues for products and services. The term ''biotechnology'' was first used ...
research. It conducted its secret activities at numerous sites across the USSR and employed 30-40,000 people.


Post-BWC developments

The Soviet Union continued the development and mass production of offensive biological weapons, despite having signed the 1972 BWC. The development and production were conducted by a main directorate (" Biopreparat") along with the
Soviet Ministry of Defense The Ministry of Defense (Minoboron; russian: Министерство обороны СССР) was a government ministry in the Soviet Union. The first Minister of Defense was Nikolai Bulganin, starting 1953. The Krasnaya Zvezda (Red Star) was the ...
, the Soviet Ministry of Agriculture, the Soviet Ministry of Health, the
USSR Academy of Sciences The Academy of Sciences of the Soviet Union was the highest scientific institution of the Soviet Union from 1925 to 1991, uniting the country's leading scientists, subordinated directly to the Council of Ministers of the Soviet Union (until 1946 ...
, the
KGB The KGB (russian: links=no, lit=Committee for State Security, Комитет государственной безопасности (КГБ), a=ru-KGB.ogg, p=kəmʲɪˈtʲet ɡəsʊˈdarstvʲɪn(ː)əj bʲɪzɐˈpasnəsʲtʲɪ, Komitet gosud ...
, and other state organizations. Alibek maintains that "Soviet leaders from
Leonid Brezhnev Leonid Ilyich Brezhnev; uk, links= no, Леонід Ілліч Брежнєв, . (19 December 1906– 10 November 1982) was a Soviet politician who served as General Secretary of the Communist Party of the Soviet Union between 1964 and ...
to Mikhail Gorbachev ''personally authorized'' prohibited development, testing, and production efforts... ndcites several Gorbachev decrees stepping up the pace of work within the biological weapons complex, and directing the creation of mobile production facilities so that inspectors could not uncover the program. In the 1980s, the Soviet Ministry of Agriculture successfully developed variants of foot-and-mouth disease and
rinderpest Rinderpest (also cattle plague or steppe murrain) was an infectious viral disease of cattle, domestic buffalo, and many other species of even-toed ungulates, including gaurs, buffaloes, large antelope, deer, giraffes, wildebeests, and warthog ...
against cows,
African swine fever ''African swine fever virus'' (ASFV) is a large, double-stranded DNA virus in the '' Asfarviridae'' family. It is the causative agent of African swine fever (ASF). The virus causes a hemorrhagic fever with high mortality rates in domestic pigs; ...
for pigs, and psittacosis to kill chicken. These agents were prepared to be sprayed down on enemy fields from tanks attached to airplanes over hundreds of miles. The secret program was code-named "Ecology". A production line to manufacture
smallpox Smallpox was an infectious disease caused by variola virus (often called smallpox virus) which belongs to the genus Orthopoxvirus. The last naturally occurring case was diagnosed in October 1977, and the World Health Organization (WHO) c ...
on an industrial scale was launched in the Vector Institute in 1990. The development of genetically altered strains of smallpox was presumably conducted in the Institute under the leadership of Dr. Sergei Netyosov in the mid-1990s, according to Kenneth Alibek. (aka Kanatjan Alibekov). In 1998, Alibek reported that "there was significant discussion of the possible use of
monkeypox Monkeypox (also called mpox by the WHO) is an infectious viral disease that can occur in humans and some other animals. Symptoms include fever, swollen lymph nodes, and a rash that forms blisters and then crusts over. The time from exposure t ...
as a biological weapon instead of smallpox." In 1989 the defector Vladimir Pasechnik convinced the British that the Soviets had
genetically engineered Genetic engineering, also called genetic modification or genetic manipulation, is the modification and manipulation of an organism's genes using technology. It is a set of technologies used to change the genetic makeup of cells, including t ...
a strain of ''
Yersinia pestis ''Yersinia pestis'' (''Y. pestis''; formerly '' Pasteurella pestis'') is a gram-negative, non-motile, coccobacillus bacterium without spores that is related to both ''Yersinia pseudotuberculosis'' and ''Yersinia enterocolitica''. It is a facult ...
'' to resist
antibiotics An antibiotic is a type of antimicrobial substance active against bacteria. It is the most important type of antibacterial agent for fighting bacterial infections, and antibiotic medications are widely used in the treatment and prevention o ...
. This triggered George H. W. Bush and
Margaret Thatcher Margaret Hilda Thatcher, Baroness Thatcher (; 13 October 19258 April 2013) was Prime Minister of the United Kingdom from 1979 to 1990 and Leader of the Conservative Party from 1975 to 1990. She was the first female British prime ...
to pressure Gorbachev into opening for inspection several of his facilities. The visits occurred in January 1991. It has been reported that Russia made smallpox available to
Saddam Hussein Saddam Hussein ( ; ar, صدام حسين, Ṣaddām Ḥusayn; 28 April 1937 – 30 December 2006) was an Iraqi politician who served as the fifth president of Iraq from 16 July 1979 until 9 April 2003. A leading member of the revolutio ...
in the beginning of the 1990s.


The post-Soviet era

The
Nunn–Lugar Cooperative Threat Reduction As the collapse of the Soviet Union appeared imminent, the United States and their NATO allies grew concerned of the risk of nuclear weapons held in the Soviet republics falling into enemy hands. The Cooperative Threat Reduction (CTR) program was ...
aimed to secure and dismantle weapons of mass destruction, including the Soviet biological weapons program. The threat reduction assisted post-Soviet states in containing and destroying the pathogens in Soviet labs. In the 1990s, the
President of the Russian Federation The president of the Russian Federation ( rus, Президент Российской Федерации, Prezident Rossiyskoy Federatsii) is the head of state of the Russian Federation. The president leads the executive branch of the federal ...
,
Boris Yeltsin Boris Nikolayevich Yeltsin ( rus, Борис Николаевич Ельцин, p=bɐˈrʲis nʲɪkɐˈla(j)ɪvʲɪtɕ ˈjelʲtsɨn, a=Ru-Boris Nikolayevich Yeltsin.ogg; 1 February 1931 – 23 April 2007) was a Soviet and Russian politician wh ...
, admitted to an offensive bio-weapons program as well as to the true nature of the Sverdlovsk biological weapons accident of 1979, which had resulted in the deaths of at least 64 people. Soviet defectors, including Colonel Kanatjan Alibekov, the first deputy chief of Biopreparat from 1988 to 1992, confirmed that the program had been massive and that it still existed. On 11 April 1992, Yeltsin decreed "the termination of research on offensive biological weapons, the dismantlement of experimental technological lines for the production of biological agents and the closure of biological weapons testing facilities", and in September 1992 Yeltsin agreed in a
Joint Statement on Biological Weapons A joint or articulation (or articular surface) is the connection made between bones, ossicles, or other hard structures in the body which link an animal's skeletal system into a functional whole.Saladin, Ken. Anatomy & Physiology. 7th ed. McGraw- ...
with the United States and the United Kingdom that the two Western nations would "have a blanket invitation to visit facilities of concern in Russia under ground rules that guarantee unprecedented access, including access to the entire facility, the ability to take samples, the right to interview the workers and scientists, and the right to record the visits on video and audio tape." Yeltsin promised to end the Russian bio-weapons program and to convert its facilities for benevolent scientific and medical purposes.M Leitenberg (2001), ''Working Paper: Biological Weapons in the 20th Century: A Review and Analysis'', College Park, Md:
Center for International and Security Studies at Maryland The Maryland School of Public Policy is one of 14 schools at the University of Maryland, College Park. The school is located inside the Capital Beltway and ranks 16th nationally for schools of public policy according to '' U.S. News & World Report ...
, University of Maryland; 2001. Available at: www.cissm.umd.edu/documents/bw%2020th%c.pdf. Retrieved January 18, 2006.
Compliance with the agreement, as well as the fate of the former Soviet bio-agents and facilities, is still mostly undocumented. Leitenberg and Zilinskas, in ''The Soviet Biological Weapons Program: A History'' (2012), state flatly that "In March 1992...Yeltsin acknowledged the existence of an illegal bioweapons program in the former Soviet Union and ordered it to be dissolved. His decree was, however, not obeyed." They conclude that "In hindsight, we know that with the ultimate failure of the... egotiationsprocess and the continued Russian refusal to open the... facilities to the present day, neither the Yeltsin or
Putin Vladimir Vladimirovich Putin; (born 7 October 1952) is a Russian politician and former intelligence officer who holds the office of president of Russia. Putin has served continuously as president or prime minister since 1999: as prime min ...
administrations ever carried out 'a visible campaign to dismantle once and for all' the residual elements of the Soviet bioweapons program". In the 1990s, specimens of deadly bacteria and viruses were stolen from western laboratories and delivered by Aeroflot planes to support the Russian biological weapons program. At least one of the pilots was a Russian Foreign Intelligence Service officer". At least two agents died, presumably from the transported pathogens.Alexander Kouzminov ''Biological Espionage: Special Operations of the Soviet and Russian Foreign Intelligence Services in the West'', Greenhill Books, 2006, In the 2000s, the academician, "A.S.", proposed a new biological warfare program, called the "Biological Shield of Russia" to president
Vladimir Putin Vladimir Vladimirovich Putin; (born 7 October 1952) is a Russian politician and former intelligence officer who holds the office of president of Russia. Putin has served continuously as president or prime minister since 1999: as prime min ...
. The program reportedly includes institutes of the Russian Academy of Sciences from
Pushchino Pushchino ( rus, Пущино, p=ˈpuɕːɪnə) is a town in Moscow Oblast, Russia, an important scientific center of the Russian Academy of Sciences. Situated south of Moscow, and 13 km south-east of Serpukhov, on the right side of the Ok ...
.Vadim J. Birstein. ''The Perversion Of Knowledge: The True Story of Soviet Science.'' Westview Press (2004) As of 2021, the United States "assesses that the Russian Federation (Russia) maintains an offensive BW program and is in violation of its obligation under Articles I and II of the BWC. The issue of compliance by Russia with the BWC has been of concern for many years".


List of Soviet/Russian biological weapons institutions, programs and projects

* Biopreparat (18 labs, test sites, and production centers) ** All-Union Scientific-Research Institute of Microbiology, Obolensk (1974-1991); later renamed as the State Research Centre for Applied Microbiology and Biotechnology **
All-Union Scientific-Research Institute of Molecular Biology The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, it was nominally a federal union of fifteen nationa ...
, Kol'tsovo (1974-1991): "At Koltsova access was again difficult and problematic. The most serious incident was when senior officials contradicted an admission by technical staff that research on smallpox was being conducted there." *
All-Union Scientific-Research Institute of Highly Pure Biopreparations
Leningrad (1974-1991); ** Berdsk Chemical Factory (1993); ** Institute of Applied Biochemistry, Omutninsk (1994); ** Institute of Immunology, Chekhov (1978-1991); **Omutninsk Chemical Factory **
Stepnogorsk Scientific Experimental-Industrial Base Stepnogorsk ( kk, Степногорск, translit=Stepnogorsk; russian: Степногорск) is a town in Akmola Region, Kazakhstan. History Stepnogorsk was established in 1959, and has been a town since 1964. It is located about 200 km ...
** Vector State Research Center of Virology and Biotechnology (VECTOR), a weaponized smallpox center * USSR Ministry of Agriculture
All-Union Scientific-Research Institute of Veterinary Virology and Microbiology
Pokrov (1958-1991) **Pokrov Factory of Biologics (1967-1991) * USSR Ministry of Defence ** Aralsk-7, Vozrozhdeniya (Renaissance) Island, Aral Sea, this BW test site was built here and on neighboring Komsomolskiy Island in 1954 ** Kirov bioweapons production facility,
Kirov, Kirov Oblast Kirov ( rus, Ки́ров, p=ˈkʲirəf, a=Ru-Киров.ogg) is the largest city and administrative center of Kirov Oblast, Russia. It is located on the Vyatka River in European Russia, 896 km northeast of Moscow. Its population was  ...
** Sverdlovsk bioweapons production facility (Military Compound 19), Sverdlovsk, a weaponized anthrax center, see Sverdlovsk anthrax leak ** Zagorsk smallpox production facility,
Zagorsk Sergiyev Posad ( rus, Се́ргиев Поса́д, p=ˈsʲɛrgʲɪ(j)ɪf pɐˈsat) is a city and the administrative center of Sergiyevo-Posadsky District in Moscow Oblast, Russia. Population: It was previously known as ''Sergiyev Posad'' (unt ...
Today Virological Center NIIM (Scientific research institute) Russian Defense Ministry in
Sergiyev Posad Sergiyev Posad ( rus, Се́ргиев Поса́д, p=ˈsʲɛrgʲɪ(j)ɪf pɐˈsat) is a city and the administrative center of Sergiyevo-Posadsky District in Moscow Oblast, Russia. Population: It was previously known as ''Sergiyev Posad'' (unt ...
. * Poison laboratory of the Soviet secret services "Pokrov, Berdsk and Omutninsk all revealed evidence of biological activity since 1975, such as large-scale production in hardened facilities, aerosol test chambers, excessive containment levels for current activity and accommodation for weapons-filling lines."


Project Bonfire

Project Bonfire was the codename for the budget to develop antibiotic-resistant microbial strains.


Project Factor

Project Factor was the codename for the budget to develop microbial weapons with new properties of high virulence, improved stability, and new clinical syndromes.


Chimera Project

The ''Chimera Project'' attempted in the late 1980s and early 1990s to combine DNA from Venezuelan
equine Equinae is a subfamily of the family Equidae, which have lived worldwide (except Indonesia and Australia) from the Hemingfordian stage of the Early Miocene (16 million years ago) onwards. They are thought to be a monophyletic grouping.B. J. Ma ...
encephalitis and
smallpox Smallpox was an infectious disease caused by variola virus (often called smallpox virus) which belongs to the genus Orthopoxvirus. The last naturally occurring case was diagnosed in October 1977, and the World Health Organization (WHO) c ...
at Obolensk, and
Ebola virus ''Zaire ebolavirus'', more commonly known as Ebola virus (; EBOV), is one of six known species within the genus '' Ebolavirus''. Four of the six known ebolaviruses, including EBOV, cause a severe and often fatal hemorrhagic fever in humans and o ...
and smallpox at the Vector Institute. The existence of these chimeric viruses programmes was one reason why Alibek defected to the United States in 1992. Journal articles by scientists suggest that in 1999 the experiments were still being continued.


Project Ekologiya

A Soviet-era agricultural biowarfare programme was pursued from 1958 through to the collapse of the USSR in 1991. This program focused on anti-crop and anti-livestock biological weapons, with Soviet efforts starting with FMD virus, for which an institute was established on
Gorodomlya Island Gorodomlya Island () is located on Lake Seliger in Tver Oblast, Russia, northwest of Moscow. The closed urban-type settlement of Solnechny is located on the island. In June 1930, the People's Commissariat of Agriculture (''Narkomzem'') began c ...
. From the 1970s, it focused on
molecular biology Molecular biology is the branch of biology that seeks to understand the molecular basis of biological activity in and between cells, including biomolecular synthesis, modification, mechanisms, and interactions. The study of chemical and physi ...
and the development of
genetically modified organisms A genetically modified organism (GMO) is any organism whose genetic material has been altered using genetic engineering techniques. The exact definition of a genetically modified organism and what constitutes genetic engineering varies, with ...
. Another innovation was the "mobilization production facilities"—ostensibly civil manufacturing plants—which incorporated capacity for production of weapons in wartime emergency."
Counter-proliferation Counterproliferation refers to diplomatic, intelligence, and military efforts to combat the proliferation of weapons, including both weapons of mass destruction (WMD), long-range missiles, and certain conventional weapons. Nonproliferation and ar ...
efforts of the Nunn-Lugar
Biological Threat Reduction Biology is the scientific study of life. It is a natural science with a broad scope but has several unifying themes that tie it together as a single, coherent field. For instance, all organisms are made up of cells that process hereditary i ...
program successfully averted
technology transfer Technology transfer (TT), also called transfer of technology (TOT), is the process of transferring (disseminating) technology from the person or organization that owns or holds it to another person or organization, in an attempt to transform invent ...
to authoritarian neighbors such as
Iran Iran, officially the Islamic Republic of Iran, and also called Persia, is a country located in Western Asia. It is bordered by Iraq and Turkey to the west, by Azerbaijan and Armenia to the northwest, by the Caspian Sea and Turkmeni ...
during the decade following the dissolution of the Soviet Union. According to ''The Soviet Union’s Agricultural Biowarfare Programme'' (2021), "The Pokrov biologics plant is the best-documented of the agricultural BW mobilisation facilities. A UK/US inspection team visited the facility in 1993 and identified five underground reinforced concrete bunkers holding hundreds of thousands of hen’s eggs being used to grow massive quantities of virus, allegedly in order to sustain a strategic weapons system."


Notable biological agent outbreaks and accidents


Smallpox

An outbreak of weaponized smallpox occurred during testing in 1971. General Professor Peter Burgasov, former Chief Sanitary Physician of the
Soviet Army uk, Радянська армія , image = File:Communist star with golden border and red rims.svg , alt = , caption = Emblem of the Soviet Army , start_date ...
, and a senior researcher within the program of biological weapons described this incident: :“On Vozrozhdeniya Island in the Aral Sea, the strongest formulations of smallpox were tested. Suddenly, I was informed that there were mysterious cases of mortalities in Aralsk. A research ship of the Aral fleet had come within 15 km from the island (it was forbidden to come any closer than 40 km). The lab technician of this ship took samples of plankton twice a day from the top deck. The smallpox formulation— 400 gr. of which was exploded on the island—”got her”, and she became infected. After returning home to Aralsk, she infected several people, including children. All of them died. I suspected the reason for this and called the General Chief of Staff at the Ministry of Defense and requested to forbid the
Alma-Ata Almaty (; kk, Алматы; ), formerly known as Alma-Ata ( kk, Алма-Ата), is the largest city in Kazakhstan, with a population of about 2 million. It was the capital of Kazakhstan from 1929 to 1936 as an autonomous republic as part of t ...
train from stopping in Aralsk. As a result, an epidemic throughout the country was prevented. I called Andropov, who at that time was the Chief of the KGB, and informed him of the unique formulation of smallpox obtained on Vozrozhdeniya Island.”


Anthrax

Spores In biology, a spore is a unit of sexual or asexual reproduction that may be adapted for dispersal and for survival, often for extended periods of time, in unfavourable conditions. Spores form part of the life cycles of many plants, algae, ...
of '' Bacillus anthracis'' (the causative agent of anthrax) were accidentally released from a military facility in Sverdlovsk in April 1979. The death toll was at least 66, but no one knows the precise number, because all hospital records and other evidence were destroyed by the
KGB The KGB (russian: links=no, lit=Committee for State Security, Комитет государственной безопасности (КГБ), a=ru-KGB.ogg, p=kəmʲɪˈtʲet ɡəsʊˈdarstvʲɪn(ː)əj bʲɪzɐˈpasnəsʲtʲɪ, Komitet gosud ...
, according to former Biopreparat deputy director Kenneth Alibek.


Marburg virus

The Soviet Union reportedly had a large biological weapons program enhancing the usefulness of the Marburg virus. The development was conducted in Vector Institute under the leadership of Dr. Ustinov who was accidentally killed by the virus. The samples of Marburg taken from Ustinov's organs were more powerful than the original strain. The new strain, called "Variant U", had been successfully weaponized and approved by the Soviet Ministry of Defense in 1990.Alibek, K. and S. Handelman. ''Biohazard: The Chilling True Story of the Largest Covert Biological Weapons Program in the World - Told from Inside by the Man Who Ran it.'' 1999. Delta (2000)


List of Soviet/Russian bioweaponeers

* Ivan Mikhailovich Velikanov * Igor' Valerianovich Domaradskii * Kanatzhan Baizakovich Alibekov, also known as Ken Alibek * Vladimir Artemovich Pasechnik at the Institute of Highly Pure Biopreparations in Leningrad * Sergei Popov * Yuri Anatol'evich OvchinnikovBirstein, Vadim J. (2004), ''The Perversion Of Knowledge: The True Story of Soviet Science'',
Westview Press Taylor & Francis Group is an international company originating in England that publishes books and academic journals. Its parts include Taylor & Francis, Routledge, F1000 Research or Dovepress. It is a division of Informa plc, a United Ki ...
.
* Nikolai Ustinov, died of Marburg virus disease * Petr Nikolaevich Burgasov * Sergey Rumyantsev * Boris Kopylev * Tsyren Tsybekzhapovich Khanduev


See also

* History of biological warfare *
Russia and weapons of mass destruction Russia (, , ), or the Russian Federation, is a transcontinental country spanning Eastern Europe and Northern Asia. It is the largest country in the world, with its internationally recognised territory covering , and encompassing one-eigh ...
*
United States biological weapons program The United States biological weapons program officially began in spring 1943 on orders from U.S. President Franklin Roosevelt. Research continued following World War II as the U.S. built up a large stockpile of biological agents and weapons. Over t ...


References


External links


Soviet Defector Warns of Biological Weapons
By Tim Werner,
New York Times ''The New York Times'' (''the Times'', ''NYT'', or the Gray Lady) is a daily newspaper based in New York City with a worldwide readership reported in 2020 to comprise a declining 840,000 paid print subscribers, and a growing 6 million paid ...
, February 25, 1998]
Statement by Dr. Kenneth Alibek before the Joint Economic Committee of United States Congress
May 20, 1998
The Russian Biological Weapons Program: Vanished or Disappeared?
by Dany Shoham and Ze'ev Wolfson, ''Critical Reviews in Microbiology'', Volume 30, Number 4, October–December 2004, pp. 241–261.

CBC News CBC News is a division of the Canadian Broadcasting Corporation responsible for the news gathering and production of news programs on the corporation's English-language operations, namely CBC Television, CBC Radio, CBC News Network, and CBC.ca ...
Online, February 18, 2004
An Obscure Weapon of the Cold War Edges Into the Limelight
by Gretchen Vogel,
Science Science is a systematic endeavor that Scientific method, builds and organizes knowledge in the form of Testability, testable explanations and predictions about the universe. Science may be as old as the human species, and some of the earli ...
, Vol. 302, pp. 222 – 223
History of Biowarfare and BioterrorismRe-Evaluating Russia's Biological Weapons Policy, as Reflected in the Criminal Code and Official Admissions: Insubordination Leading to a President's Subordination
by Jan T. Knoph; Kristina S. Westerdahl. ''Critical Reviews in Microbiology'', Volume 32, Issue 1 January 2006, pages 1 – 13 *"The Memoirs of an Inconvenient Man: Revelations About Biological Weapons Research in the Soviet Union" by Igor V. Domaradskij and Wendy Orent, ''Critical Reviews in Microbiology'', Volume 27, Issue 4 October 2001, pages 239 - 266.
Russian Biological and Chemical Weapons
a useful page about non-state weapons transfers with a lot of links to information from CRS, the GAO and NGOs.
Bioweapons from Russia: Stemming the Flow
by Jonathan B. Tucker {{U.S.S.R. biological weapons Weapons of the Soviet Union